Bird cage



FIG. 1 is a schematic view of a birdcage showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof; 

CLAIM The ornamental design for a birdcage, as shown. 